UC specimens and range limits for Gloiopeltis furcata

• Blue markers: specimen records
• Yellow marker: type locality, if present
• Red markers: endpoints of range from literature

View map from the Consortium of Pacific Northwest Herbaria

Search Sequences in GenBank

Gloiopeltis J. Agardh 1842

Thalli erect to partially decumbent, usually in small tufts. Branches uniaxial, with axial filament and surrounding rhizoids frequently degenerating when plant is mature. Surface cells firmly compacted and appearing parenchymatous, the surface firm to gelatinous. Tetrasporangia scattered in outer cortex. Tetrasporangial plants slightly taller than cystocarpic plants. Spermatangia of converted terminal cortical cells, not in chains; carpogonial and auxiliary-cell branches borne in same branched filament; carpogonial branches 2-celled, frequently occurring in clusters (polycarpogonial). Auxiliary cell an enlarged cell borne in same fertile branch system, a connecting filament necessary for transfer of fertilized nucleus. Gonimoblasts prominently protruding, nearly all cells becoming carposporangia.

Gloiopeltis furcata (Post. & Rupr.) J. Ag.

Dumontia furcata Postels & Ruprecht 1840: 19. Gloiopeltis furcata (Post. & Rupr.) J. Agardh 1851: 235; Doty 1947b: 166; Hollenberg & Abbott 1966: 53 (incl. synonymy).

Thalli 2.5-5 cm tall, terete to slightly compressed, slippery, irregularly dichotomously branched, the apices simple or furcate, brownish-purple, drying to nearly black; reproduction as for genus.

Infrequent, high intertidal on rocks in areas exposed to surf, Aleutian Is. to Pta. Eugenio, Baja Calif.; in Calif., from Humboldt Co. to Malpaso Creek (Monterey Co.) and Santa Catalina Island. Type locality: North Pacific.

Excerpt from Abbott, I. A., & Hollenberg, G. J. (1976). Marine algae of California. Stanford University Press, Stanford, California. xii [xiii] + 827 pp., 701 figs.